Seervision Full Stack Web Developer interview questions

Applying online, then an o line meeting with Damian, easy going, we talked about the company and the role, but he seems a little unprepared... then he send me a code challenge, create a simple Todolist in react & create a backend in your preferred language. THE RESULT? They didn’t answer anymore, this is really unfair and unpolite, I’ve spent hours to do a good job, and you don’t take a minute to answer?! Not even a kind remind... nothing... after three weeks... Totally a waste of time!! Stay away from this company.